Hello everyone,
Recently I've got this card in the bunch of 486 PCs. I expect this a cache for motherboard or used for midi samples.
Google couldn't help.
Can anyone please help to identify this device?
Regards,
Leency
those seem to be SRAM chips, so a cache module most likely.
Could this be an Intel Turbo Cache module? That was a thing in early 486 (mainly OEM) era.
That said, iirc Turbo Cache was taller and narrower. This looks like it might have been for use in a laptop.
Edit:
Nope, not turbo cache, those things had a 485 cache controller on them too
Those chips are IDT 71256SA15Y - 32Kx8 with a speedy 15ns access time. So yeah, my guess is that it's a 256KB L2 cache module (plus a couple extra chips for the cache tags) for an 80486 motherboard.
Proprietary graphics card memory upgrade?
